PHP9000-3F-SL is a highly reactive and independent ingredient (No other ingredients are required to use) epoxy resin material, halogen-free and environmentally friendly PCB functional resin, no organic solvents, good resin separation during silk or aluminum printing, no bubbles or cavities take place in the process of silk or aluminum printing. It is suitable for high density selective plug via process, with excellent high temperature resistance, high quality reliability, excellent hardness, easy to grinding, without dent and depression after plating, good flatness, very strong adhesion with copper and resin of via, especially right for ultra-low CTE high-frequency CCL.